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Finding the Fourth Proportional to 110,608.20, 165,912.30 and 31,730.40

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Solution

The fourth proportional to 110,608.20, 165,912.30 and 31,730.40 is: 47,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,608.20 : 165,912.30 = 31,730.40 : x
  2. Step 2: Convert to fraction form
    110,608.20/165,912.30 = 31,730.40/x
  3. Step 3: Cross multiply
    110,608.20x = 165,912.30 × 31,730.40
  4. Step 4: Simplify right side
    110,608.20x = 5,264,463,643.92
  5. Step 5: Solve for x
    x = 5,264,463,643.92/110,608.20
  6. Step 6: Final answer
    x = 47,595.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.